Car comparison

BMW 4 Series Convertible (G23) 430dvsBMW 2 Series Convertible (F23) 230i

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

BMW 4 Series Convertible (G23)

430d

286 hp2993 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2021-2024
VS

BMW 2 Series Convertible (F23)

230i

252 hp1998 ccGasolineRWDAutomaticTurbochargedCabriolet / convertible2016-2017

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

BMW 4 Series Convertible (G23) 430d

  • Quickest 0-100 km/h
    5.8 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    286 hp
    213 kW
  • Highest torque
    650 Nm
    479 lb-ft
  • Lowest combined fuel consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Best estimated range
    983 km
    611 mi
  • Largest trunk
    300 L
  • Best overall score
    61/100
  • Best performance score
    68/100
  • Best economy score
    91/100
  • Best practicality score
    45/100

Specification comparison

Specification comparison
ModelBMW4 Series Convertible (G23)430dBMW2 Series Convertible (F23)230i
Power
286hp213kW
252hp188kW
Torque
650Nm479lb-ft
350Nm258lb-ft
Curb weight
1,880kg4,145lb
1,570kg3,461lb
Gross weight
2,380kg5,247lb
2,010kg4,431lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
83.8s99% target: 257 km/h / 160 mph
Calculated
87.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.8s
5.9s
0-200 km/h
21.5s
Calculated
22.1s
Calculated
0-60 mph
5.5s
Calculated
5.6s
Calculated
Fuel consumption
6L/100 km39.2mpg US47.1mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Fuel consumption city-
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption highway-
5.3L/100 km44.4mpg US53.3mpg UK
Quarter mile
13.9s
Calculated
14.0s
Calculated
Power-to-weight
152hp/t113kW/t69hp/1000 lb
Calculated
161hp/t120kW/t73hp/1000 lb
Calculated
Torque-to-weight
346Nm/t231lb-ft/ton
Calculated
223Nm/t149lb-ft/ton
Calculated
Estimated range
983km611mi
Calculated
839km521mi
Calculated
Displacement
2,993cc183cu in
1,998cc122cu in
Length
4,768mm188in
4,432mm174in
Width
1,852mm73in
1,774mm70in
Height
1,384mm54in
1,413mm56in
Wheelbase
2,851mm112in
2,690mm106in
Front track
1,573mm62in
1,521mm60in
Rear track
1,612mm63in
1,556mm61in
Ground clearance
124mm5in
140mm6in
Trunk volume
300L
280L
Max trunk volume
385L
335L
Doors
2
2
Seats
4
4
Fuel tank
59L
52L
CO2 emissions-
142g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

BMW 4 Series Convertible (G23) 430dBMW 2 Series Convertible (F23) 230iPowerTorque
  • BMW 4 Series Convertible (G23) 430d: Power / Torque
  • BMW 2 Series Convertible (F23) 230i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Convertible (G23)430d4,000 rpm1,500-2,500 rpm4,250 rpm
BMW2 Series Convertible (F23)230i5,200 rpm1,450-4,800 rpm5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Convertible (G23)430dBMW2 Series Convertible (F23)230i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.5 s
5.6 s
0-100 km/h
0-62 mph
5.8 s
5.9 s
0-200 km/h
0-124 mph
21.5 s
22.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.0 s
6.1 s
1/8 mile
201 m
9.1 s
9.2 s
1000 ft
305 m
11.7 s
11.8 s
1/4 mile
402 m
13.9 s
14.0 s
Trap speed
1/4 mile
402 m
166 km/h
103 mph
164 km/h
102 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
286 hp
213 kW
BMW2 Series Convertible (F23)230i
252 hp
188 kW

BMW 4 Series Convertible (G23) 430d has 34 hp more than BMW 2 Series Convertible (F23) 230i.

The biggest power difference is between BMW 2 Series Convertible (F23) 230i and BMW 4 Series Convertible (G23) 430d: 34 hp (25 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
650 Nm
479 lb-ft
BMW2 Series Convertible (F23)230i
350 Nm
258 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
1,880 kg
4,145 lb
BMW2 Series Convertible (F23)230i
1,570 kg
3,461 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW2 Series Convertible (F23)230i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d5.8 s
BMW2 Series Convertible (F23)230i5.9 s

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (G23) 430d and BMW 2 Series Convertible (F23) 230i: 0.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
BMW2 Series Convertible (F23)230i
6.2 L/100 km
37.9 mpg US
45.6 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
152 hp/t
113 kW/t
6.6 kg/hp
BMW2 Series Convertible (F23)230i
161 hp/t
120 kW/t
6.2 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
BMW4 Series Convertible (G23)430d
983 km
611 mi
BMW2 Series Convertible (F23)230i
839 km
521 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Convertible (G23)430d
286 hp
213 kW
5.8 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW2 Series Convertible (F23)230i
252 hp
188 kW
5.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
BMW4 Series Convertible (G23)430d
Power
286 hp
213 kW
0-100 km/h5.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,768 mm
187.7 in
Height
1,384 mm
54.5 in
BMW2 Series Convertible (F23)230i
Power
252 hp
188 kW
0-100 km/h5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
280 L
9.9 cu ft
Length
4,432 mm
174.5 in
Height
1,413 mm
55.6 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
BMW4 Series Convertible (G23)430d
Power
286 hp
213 kW
0-100 km/h5.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
BMW2 Series Convertible (F23)230i
Power
252 hp
188 kW
0-100 km/h5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.2 L/100 km
37.9 mpg US
45.6 mpg UK

BMW 4 Series Convertible (G23) 430d is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
BMW4 Series Convertible (G23)430d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
5.8 s
BMW2 Series Convertible (F23)230i
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
5.9 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
BMW4 Series Convertible (G23)430d
152 hp/t
113 kW/t
6.6 kg/hp
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
BMW2 Series Convertible (F23)230i
161 hp/t
120 kW/t
6.2 kg/hp
6.2 L/100 km
37.9 mpg US
45.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Convertible (G23)430dBMW2 Series Convertible (F23)230i
Power
286 hp
213 kW
252 hp
188 kW
Torque
650 Nm
479 lb-ft
350 Nm
258 lb-ft
Acceleration
5.8 s
5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,880 kg
4,145 lb
1,570 kg
3,461 lb
Fuel consumption
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,768 mm
187.7 in
Height
1,384 mm
54.5 in
Doors/seats
2 doors
4 seats
Trunk
280 L
9.9 cu ft
Length
4,432 mm
174.5 in
Height
1,413 mm
55.6 in
Range score
983 km
611 mi
839 km
521 mi
CO2 score
-
142 g/km
Trunk score
300 L
10.6 cu ft
280 L
9.9 cu ft
Power-to-weight score
152 hp/t
113 kW/t
6.6 kg/hp
161 hp/t
120 kW/t
6.2 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleBMW 4 Series Convertible (G23) 430dBMW 2 Series Convertible (F23) 230i
Consumption6 L/100 km39.2 mpg US47.1 mpg UK6.2 L/100 km37.9 mpg US45.6 mpg UK
Cost / 100 km10.50 LC100 km10.85 LC100 km
Cost / 100 mi16.90 LC100 mi17.46 LC100 mi
Annual fuel used900 L238 US gal198 UK gal930 L246 US gal205 UK gal
Annual fuel cost1,575 LC/year1,628 LC/year

Head-to-head comparisons

BMW 4 Series Convertible (G23) 430d

  • Has 34 hp more
  • Has 300 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.2 L/100 km less fuel
  • Has 145 km (90 mi) more estimated range
  • Has 20 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

BMW 2 Series Convertible (F23) 230i

  • Is 310 kg lighter
  • Has 8 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Convertible (G23) 430d
BMW 2 Series Convertible (F23) 230i
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